There is a good one here about how to rescue interfacing that I think would work for Heat N Bond and Pellon too.
https://www.fashionsewingsupply.com/...e1083612a2e1b2

Very handy, thanks for sharing, now if I could get those winkles out of some of those cotton fabrices I press the interfacing on and the interfacing ends up winkling??? The interfacing and fabric are both winkled free when I strat to appy. Have no idea why this happens sometimes unless I am using the wrong iron temp or the iron isn't keeping a steady heat???

Being a garment sewer for years I have learned that when a pressing fusible interfacing to fabric there are several important things to do for successful application. Know what temperature to use and if you should use steam or no steam and possible the most important is to not move the fused fabric and interfacing until it is cool. That patience does pay off with success

I agree. I get the product information and read what temp to use and if I should can use steam or not. Thanks for the tip not to move it, that is a good tip -- I found out the hard way since the "P" word isn't usually in my vocabulary, lol! Patience that is.